Tolong guys no 12&15 pake Cara yaa

12.) 60/24 = 75/x
x = 24/60 x 75
x = 24/12 x 15
x = 30 (D.)
15.) a/b = p:q
6/(2m/2) = 12/9
2m/2 = 9/12 x 6
2m/2 = 3
2m=6
m=3 (A.)